#include<stdio.h>
#include<time.h>
#include<unistd.h>
#include<stdlib.h>

int main() 
{
    time_t t_1;
    
    while(1)
    {
        t_1 = time(NULL);
        struct tm *l_time = localtime(&t_1);
        printf("%d月%d日%d时%d分%d秒 \n", \
        l_time->tm_mon + 1 , l_time->tm_mday , l_time->tm_hour , \
        l_time->tm_min , l_time->tm_sec);
        sleep(1);
        system("clear");

    }
    return 0;
}